Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
1.5KE Series
Description
Uni-directional
RoHS
Pb
e3
The 1.5KE Series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Features
Bi-directional
• 1500W peak pulse
capability at 10/1000μs
waveform, repetition rate
(duty cycles):0.01%
• Glass passivated chip
junction in DO-201
Package
• Fast response time:
typically less than 1.0ps
from 0 Volts to BV min
• Excellent clamping
capability
• Typical failure mode is
short from over-specified
voltage or current
• Whisker test is conducted
based on JEDEC
JESD201A per its table 4a
and 4c
• IEC-61000-4-2 ESD
30kV(Air), 30kV (Contact)
• ESD protection of data
lines in accordance with
IEC 61000-4-2
• EFT protection of data
lines in accordance with
IEC 61000-4-4
• Low incremental surge
resistance
• Typical I
R
less than 1μA
when V
BR
min>12V
• High temperature
to reflow soldering
guaranteed: 260°C/40sec
/ 0.375”
,(9.5mm) lead
length, 5 lbs., (2.3kg)
tension
• V
BR
@ T
J
= V
BR
@25°C
x (1+
α
T x (T
J
- 25))
(
α
T:Temperature
Coefficient, typical value
is 0.1%)
• Plastic package is
flammability rated V-0 per
Underwriters Laboratories
• Matte tin lead–free plated
• Halogen free and RoHS
compliant
• Pb-free E3 means 2nd
level interconnect is
Pb-free and the terminal
finish material is tin(Sn)
(IPC/JEDEC J-STD-
609A.01)
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E230531
Maximum Ratings and Thermal Characteristics
(T
A
=25
O
C unless otherwise noted)
Parameter
Peak Pulse Power Dissipation by
10/1000μs Test Waveform (Fig.2)
(Note 1), (Note 4)
Steady State Power Dissipation on
Infinite Heat Sink at T
L
=75ºC
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave Unidirectional
Only (Note 2)
Maximum Instantaneous Forward
Voltage at 100A for Unidirectional
Only (Note 3)
Operating Junction and Storage
Temperature Range
Typical Thermal Resistance
Junction to Lead
Typical Thermal Resistance
Junction to Ambient
Symbol
P
PPM
P
D
I
FSM
V
F
T
J
, T
STG
R
θJL
R
θJA
Value
1500
6.5
200
3.5/5.0
-55 to 175
15
75
Unit
W
W
A
V
°C
°C/W
°C/W
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above T
J
(initial) =25
O
C per Fig. 3.
2. Measured on 8.3ms single half sine wave or equivalent square wave, duty cycle=4 per
minute maximum.
3. V
F
< 3.5V for single die parts and V
F
< 5.0V for stacked-die parts.
4. The P
PPM
of stacked-die parts is 2kW and please contact littelfuse for the detail
stacked-die parts.
Applications
TVS devices are ideal for the protection of I/O interfaces,
V
CC
bus and other vulnerable circuits used in telecom,
computer, industrial and consumer electronic applications.
Additional Infomarion
Functional Diagram
Bi-directional
Datasheet
Resources
Samples
Cathode
Uni-directional
Anode
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
Electrical Characteristics
(T =25°C unless otherwise noted)
A
Part
Number
(Uni)
1.5KE6.8A
1.5KE7
.5A
1.5KE8.2A
1.5KE9.1A
1.5KE10A
1.5KE11A
1.5KE12A
1.5KE13A
1.5KE15A
1.5KE16A
1.5KE18A
1.5KE20A
1.5KE22A
1.5KE24A
1.5KE27A
1.5KE30A
1.5KE33A
1.5KE36A
1.5KE39A
1.5KE43A
1.5KE47A
1.5KE51A
1.5KE56A
1.5KE62A
1.5KE68A
1.5KE75A
1.5KE82A
1.5KE91A
1.5KE100A
1.5KE110A
1.5KE120A
1.5KE130A
1.5KE150A
1.5KE160A
1.5KE170A
1.5KE180A
1.5KE200A
1.5KE220A
1.5KE250A
1.5KE300A
1.5KE320A
1.5KE350A
1.5KE400A
1.5KE440A
1.5KE480A
1.5KE510A
1.5KE530A
1.5KE540A
1.5KE550A
1.5KE600A
Part
Number
(Bi)
1.5KE6.8CA
1.5KE7
.5CA
1.5KE8.2CA
1.5KE9.1CA
1.5KE10CA
1.5KE11CA
1.5KE12CA
1.5KE13CA
1.5KE15CA
1.5KE16CA
1.5KE18CA
1.5KE20CA
1.5KE22CA
1.5KE24CA
1.5KE27CA
1.5KE30CA
1.5KE33CA
1.5KE36CA
1.5KE39CA
1.5KE43CA
1.5KE47CA
1.5KE51CA
1.5KE56CA
1.5KE62CA
1.5KE68CA
1.5KE75CA
1.5KE82CA
1.5KE91CA
1.5KE100CA
1.5KE110CA
1.5KE120CA
1.5KE130CA
1.5KE150CA
1.5KE160CA
1.5KE170CA
1.5KE180CA
1.5KE200CA
1.5KE220CA
1.5KE250CA
1.5KE300CA
1.5KE320CA
1.5KE350CA
1.5KE400CA
1.5KE440CA
1.5KE480CA
1.5KE510CA
1.5KE530CA
1.5KE540CA
1.5KE550CA
1.5KE600CA
Reverse
Stand off
Voltage V
R
(Volts)
5.80
6.40
7
.02
7
.78
8.55
9.40
10.20
11.10
12.80
13.60
15.30
17
.10
18.80
20.50
23.10
25.60
28.20
30.80
33.30
36.80
40.20
43.60
47
.80
53.00
58.10
64.10
70.10
77
.80
85.50
94.00
102.00
111.00
128.00
136.00
145.00
154.00
171.00
185.00
214.00
256.00
273.00
300.00
342.00
376.00
408.00
434.00
451.00
460.00
468.00
512.00
Breakdown Voltage V
BR
(Volts) @ I
T
MIN
6.45
7
.13
7
.79
8.65
9.50
10.50
11.40
12.40
14.30
15.20
17
.10
19.00
20.90
22.80
25.70
28.50
31.40
34.20
37
.10
40.90
44.70
48.50
53.20
58.90
64.60
71.30
77
.90
86.50
95.00
105.00
114.00
124.00
143.00
152.00
162.00
171.00
190.00
209.00
237
.00
285.00
304.00
332.00
380.00
418.00
456.00
485.00
503.50
513.00
522.50
570.00
MAX
7
.14
7
.88
8.61
9.50
10.50
11.60
12.60
13.70
15.80
16.80
18.90
21.00
23.10
25.20
28.40
31.50
34.70
37
.80
41.00
45.20
49.40
53.60
58.80
65.10
71.40
78.80
86.10
95.50
105.00
116.00
126.00
137
.00
158.00
168.00
179.00
189.00
210.00
231.00
263.00
315.00
336.00
368.00
420.00
462.00
504.00
535.00
556.50
567
.00
577
.50
630.00
Test
Current
I
T
(mA)
10
10
10
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Maximum
Clamping
Voltage
V
C
@ I
pp
(Volts)
10.5
11.3
12.1
13.4
14.5
15.6
16.7
18.2
21.2
22.5
25.2
27
.7
30.6
33.2
37
.5
41.4
45.7
49.9
53.9
59.3
64.8
70.1
77
.0
85.0
92.0
103.0
113.0
125.0
137
.0
152.0
165.0
179.0
207
.0
219.0
234.0
246.0
274.0
328.0
344.0
414.0
441.0
482.0
548.0
602.0
658.0
698.0
725.0
740.0
760.0
828.0
Maximum
Peak Pulse
Current I
pp
(A)
144.8
134.5
125.6
113.4
104.8
97
.4
91.0
83.5
71.7
67
.6
60.3
54.9
49.7
45.8
40.5
36.7
33.3
30.5
28.2
25.6
23.5
21.7
19.7
17
.9
16.5
14.8
13.5
12.2
11.1
10.0
9.2
8.5
7
.3
6.9
6.5
6.2
5.5
4.6
4.4
3.7
3.5
3.2
2.8
2.5
2.3
2.1
2.1
2.0
2.0
1.8
Maximum
Reverse
Leakage I
R
@
V
R
(µA)
1000
500
200
50
10
5
5
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Agency
Approval
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
F
For bidirectional type having V
R
of 10 volts and less, the I
R
limit is double.
For parts without A, the V
BR
is ± 10% and V
C
is 5% higher than with A parts.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
I-V Curve Characteristics
Uni-directional
Bi-directional
I
pp
Vc V
BR
V
R
I
R
V
F
I
T
V
Vc V
BR
V
R
I
T
I
R
I
R
I
T
V
R
V
BR
Vc
V
I
pp
I
pp
P
PPM
V
R
V
BR
V
C
I
R
V
F
Peak Pulse Power Dissipation
-- Max power dissipation
Stand-off Voltage
-- Maximum voltage that can be applied to the TVS without operation
Breakdown Voltage
-- Maximum voltage that flows though the TVS at a specified test current (I
T
)
Clamping Voltage
-- Peak voltage measured across the TVS at a specified Ippm (peak impulse current)
Reverse Leakage Current
-- Current measured at V
R
Forward Voltage Drop for Uni-directional
Ratings and Characteristic Curves
(T =25°C unless otherwise noted)
A
Figure 1 - TVS Transients Clamping Waveform
Voltage Transients
Figure 2 - Peak Pulse Power Rating
100
P
PPM
-Peak Pulse Power (kW)
TJ initial = Tamb
Voltage Across TVS
Voltage or Current
10
stacked-die, 2kW
at 10x1000µs,
25°C
Current Through TVS
1
Single die, 1.5kW
at 10x1000µs,
25°C
0.1
0.001
Time
0.01
0.1
1
10
t
d
-Pulse Width (ms)
continues on next page.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
Ratings and Characteristic Curves
(T =25°C unless otherwise noted)
(Continued)
A
Figure 3 - Peak Pulse Power Derating Curve
Figure 4 - Pulse Waveform
150
Peak Pulse Power (P
PP
) or Current (I
PP
)
Derating in Percentage %
I
PPM
- Peak Pulse Current, % I
RSM
100
tr=10µsec
Peak Value
IPPM
TJ=25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
75
100
50
Half Value
IPPM
IPPM
2
( )
10/1000µsec. Waveform
as defined by R.E.A
25
50
0
0
25
50
75
100
125
150
175
200
0
td
T
J
- Initial Junction Temperature (ºC)
0
1.0
2.0
t-Time (ms)
3.0
4.0
Figure 5 - Typical Junction Capacitance
100000
Uni-directional V=0V
Bi-directional V=0V
Figure 6 - Typical Transient Thermal Impedance
100
10000
Transient Thermal Impedance (°C/W)
1000
Cj(pF)
10
1000
Uni-directional V=V
R
100
1
10
Bi-directional V=V
R
1
1
10
100
0.1
0.01
0.1
1
10
100
1000
TP - Pulse Duration (s)
V
BR
- Reverse Breakdown Voltage(V)
Figure 7 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
200
160
140
120
100
80
60
40
20
0
1
10
Number of Cycles at 60 Hz
100
Figure 8 - Peak Forward Voltage Drop vs Peak Forward
Current (Typical Values)
100.0
I
FSM
- Peak Forward Surge Current (A)
IF- Peak Forward Current(A)
180
Single die
Stacked-die
10.0
1.0
0.1
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
VF-Peak Forward Voltage(V)
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Transient Voltage Suppression Diodes
Axial Leaded – 1500W > 1.5KE series
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (min to max) (t
s
)
Average ramp up rate (Liquidus Temp (T
A
)
to peak
T
S(max)
to T
A
- Ramp-up Rate
Reflow
- Temperature (T
A
) (Liquidus)
- Time (min to max) (t
s
)
Lead–free
assembly
150°C
200°C
60 – 180 secs
3°C/second max
3°C/second max
217°C
60 – 150 seconds
260
+0/-5
°C
20 – 40 seconds
6°C/second max
8 minutes Max.
260°C
Temperature (T)
T
P
Ramp-up
t
p
Critical Zone
T
L
to T
P
T
L
T
s(max)
t
L
T
s(min)
Ramp-down
Preheat
t
s
25˚C
t 25˚C to Peak
Time (t)
Peak Temperature (T
P
)
Time within 5°C of actual peak
Temperature (t
p
)
Ramp-down Rate
Time 25°C to peak Temperature (T
P
)
Do not exceed
Flow/Wave Soldering (Solder Dipping)
Peak Temperature :
Dipping Time :
Soldering :
265
O
C
10 seconds
1 time
Physical Specifications
Weight
Case
Polarity
Terminal
0.045oz., 1.2g
JEDEC DO-201 molded plastic body
over passivated junction.
Color band denotes the cathode except
Bipolar.
Matte Tin axial leads, solderable per
JESD22-B102.
Environmental Specifications
High Temp. Storage
HTRB
Temperature Cycling
H3TRB
RSH
JESD22-A103
JESD22-A108
JESD22-A104
JESD22-A101
JESD22-B106
Dimensions
Dimensions
A
Inches
Min
1.000
0.285
0.038
0.190
Max
-
0.375
0.042
0.210
Millimeters
Min
25.40
7
.20
0.96
4.80
Max
-
9.50
1.07
5.30
D
A
Cathode Band
(for Uni-directional products only)
C
B
DO-201
B
C
D
A
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 11/20/15
Embedded System
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